PURPOSE: To provide a rice cooker which is excellent in an external appearance property in the periphery of a vessel containing part and assembling workability, and always prevents rice from becoming dry and dew from dripping from the lower face of a cover body.

CONSTITUTION: In the outside of an inner frame 2, an induction coil 8 for heating a vessel 4 is installed. In the course of warming, the induction coil 8 is subjected to 1 second electric conduction/12 seconds disconnection. Also, in the case the inside of the vessel 4 exceeds a warming temperature, the 1 second electric conduction is unnecessitated. A temperature of the lower face plate 14 of a cover is kept higher than the warming temperature by 1°C, only in the case the vessel 4 is below the warming temperature. In such a way, warming by the induction coil 8 can be executed through the inner frame 2 having heat insulation resistance. Therefore, a heat insulating member becomes unnecessary, and the inner frame can be formed integrally. Also, in the course of warming, a temperature of the lower face plate 14 of the cover comes to always be fluctuated high or low against the warming temperature.